Sucker-rod elevator



. {No Model.)

No. 456,071. I

' -L.VAUGHAN. STICKER ROD ELEVATOR.

Patent ed July 14, 1891. I

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LEWIS VAUGHAN, OF SUMMIT CITY, PENNSYLVANIA.

SUCKER-RO D ELEVATOR.

SPECIFICATION forming part of Letters Patent No. 456,071, dated July 14, 1891.

Application filed MSJOIIQG, 1891.

To all whom it may concern:

Be it known that I, LEWIS VAUGHAN, of Summit City, in the county of McKean and State of Pennsylvania, have invented a new and useful Improvement in Sucker-Rod Elevators, of which the following is a specification.

My invention is an improvement in rodlifters, and is intended especially for lifting the sucker-rods of oil and other deep wells.

The invention consists in certain features of construction and novel combinations of parts, as will be hereinafter described, and pointed out in the claims.

In the drawings, Figure 1 is a perspective view of myimproved elevator, illustratingthe manner of holding the same in applying it to and removing it from a rod-section. Fig. 2 is a sectional view of the elevator, parts being broken away. Fig. 3 is a perspective view of the elevator, the upper part of the hanger being broken away; and Fig. 4 is a detail top plan view of the base plate or block.

The elevator is shown as composed of the base plate or block A, hanger B, and the latch O. The base-plate is provided with a slot D, formed from one edge and opening out at what may, for convenience of reference, be termed the front edge of the block. At the inner edge of the slot D, I form in the top of the base-plate a recessed seat E, curved in the arc of a circle and adapted to receive the shoulder at the upper end of a sucker-rod sec-. tion. In applying the block A to the rod-section the block is slipped laterally onto the rod just below the shoulder 1 thereof. The slot D slips onto the angular part 2 of the rod, and when the block has been adjusted fully onto the rod the shoulder or head of the rod will drop into the recessed seat E. The hanger B is hinged at its lower end to the block on opposite sides of the curvedseat E and in a line drawn diametrically through such seat.

In effecting the hinge connection between the hanger and the block it is preferred to provide boxes F on the base-plate and to form the hanger at its lower end with a yoke G, providing arms H, which have lateral pivotstuds I, fitting in the bearings of the boxes F. At its upper or free end the hanger is adapted for connection with the hoisting devices, be-

Serial No. 386,572. (No model.)

iug preferably provided at such end with a' swivel-link J, as shown. When adjusted to ahorizontal position, to which it is preferably turned in applying the elevator to a rod-section, the hanger-rod is stopped in such horizontal position by the stops K, consisting of lugs projecting laterallyat the rear edge of the base-plate.

The latch Ois of aspecial construction,andis formed with a shaft-like portion L, journaled to the base-plate and having crankarms M and N and a handle-rod O, projecting from the outer end of the crank N. The cranks M and N are arranged at right angles to each other and are located as shown, the I crank M being arranged to be lowered to a position in front of the recessed plate to se cure the head of the rod-section therein or be raised to permit the head to be adjusted into or out of the seat. The crank N swings up and down alongside the rear edge of the baseplate and the relation of cranks M and N is such that when the crank M is down in position to hold the rod head in its seat the arm N will hang vertically down and that when the crank M is raised to vertical unlocked position the arm N will be in approximately a horizontal position,so that the gravity of the crank N and handle-rod 0 tends to secure the latch normally in closed position with the crank-arm M in position to hold the head in its seat.

The operation is simple and will be readily understood. In practice I use two of the improved elevators, one being engaged with the head of one sucker-rod section and the whole being lifted by any suitable hoisting devices. When lifted to bring the head of the next lower section above the well-tube, the other elevator may be taken in one hand, the hanger being turned to horizontal position. It will be noticed that the handle-rod 0 projects adjacent to the hanger-rod when in said position, so that the hand grasping the hanger can-conveniently operate the latch.

Having thus described my invention,what I claim as new is 1. An improved elevator, substantially as described, comprising the base-plate provided with a seat E and having a slot D leading from such seat and opening out of its edge, and the latch consisting of a rock-shaft journaled in bearings upon the said base-plate on one side of the slot and held from longitudinal movement and provided with a crank-arm movable vertically and arranged when lowered to extend across the slot D and rest 11 pen the base-plate, all substantially as described, and for the purposes set forth.

2. In an elevating device, substantially as shown and described, the combination of the base-plate having a seat for the rod and a slot or opening leading thereto, the hanger pivoted to said plate, and the latch having a shaft portion journaled to the base-plate and provided at its front end with a crank-arm LEVIS VAUGHAN.

\Vitnesses:

P. B. TURPIN, SoLoN C. KEMON. 

